134642111 has 4 divisors (see below), whose sum is σ = 136030272. Its totient is φ = 133253952.

The previous prime is 134642089. The next prime is 134642117. The reversal of 134642111 is 111246431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134642111 - 2⁶ = 134642047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134642117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693935 + ... + 694128.

It is an arithmetic number, because the mean of its divisors is an integer number (34007568).

Almost surely, 2^134642111 is an apocalyptic number.

134642111 is a deficient number, since it is larger than the sum of its proper divisors (1388161).

134642111 is an equidigital number, since it uses as much as digits as its factorization.

134642111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388160.

The product of its digits is 576, while the sum is 23.

The square root of 134642111 is about 11603.5387274745. The cubic root of 134642111 is about 512.5390631339.

Adding to 134642111 its reverse (111246431), we get a palindrome (245888542).

The spelling of 134642111 in words is "one hundred thirty-four million, six hundred forty-two thousand, one hundred eleven".